El Dorado High School Topic #2 : Hazard Communication EQ: What are important aspects of MSDS and NFPA safety diamonds? Your “Right to Know”

Agenda  Material Safety Data Sheets (MSDSs)  Fire Diamond  Safety Symbols

Hazard Communication Material Safety Data Sheets (MSDS)

Hazard Communication Material Safety Data Sheets Company Information Company Information Hazardous Ingredients Hazardous Ingredients Physical Data Physical Data Fire and Explosion Data Fire and Explosion Data Health Hazard Data Health Hazard Data Reactivity Data Reactivity Data Spill & Leak Procedures Spill & Leak Procedures Special Protection Information Special Protection Information Special Precautions Special Precautions

Material Safety Data Sheets: Your Rights 1. Your school and even an employer must have MSDS information available for every hazardous substance you use as part of your job.

Material Safety Data Sheets: Your Rights 2. These MSDS sheets must be available to you the entire time you are in the laboratory or workplace.

Material Safety Data Sheets: Your Rights 3. If you request to see a copy of an MSDS for a product you use, and your employer cannot provide it after one working day, you may refuse to use that product or work in an area where it is being used.

Material Safety Data Sheets: Your Rights 4. At the workplace, if you request your own personal copy of an MSDS, your employer has 15 days to provide it.

Hazard Communication NFPA (National Fire Protection Association) Diamonds

Labeling and Marking Systems NFPA Diamonds  Color coded, numerical rating system  Will be located near main entrances, fire alarm panels, or on outside entrance doors  Provide at-a-glance hazard information

Labeling and Marking Systems NFPA Diamonds  Blue = Health  Red = Flammability  Yellow = Reactivity  White = Special hazard information

Labeling and Marking Systems NFPA Diamonds  4= Deadly Hazard  3= Serious Hazard  2= Moderate Hazard  1= Slight Hazard  0= Minimal Hazard

Flammability0 There is no fire hazard. Example: water1 Material must be pre-heated before ignition can occur. Example: corn oil 2 Material must be heated for ignition. Example: diesel fuel oil 3 A flammable liquid or solid which can be readily ignited. Example: gasoline 4 A flammable vapor or gas which burns readily. Example: propane gas

Health Hazard 0 There is no health hazard. Example: peanut oil1 The substance could cause irritation. Example: turpentine 2 The substance could cause temporary incapacitation. Example: ammonia gas 3 The substance could cause serious temporary or irreversible injury. Example: chlorine gas 4 Material that on very short exposure could cause death or major residual injury. Example: hydrogen cyanide

REACTIVITY0 Material that in itself is normally stable,. Example: liquid nitrogen1 The substance may become unstable at high temperatures. Example: phosphorus (red or white) 2 The substance is readily capable of non-explosive reaction. Example: calcium metal 3 The substance may detonate when exposed to heat or an ignition source. Example: fluorine gas 4 The substance is readily capable of detonation or explosive reaction. Example: trinitrotoluene (TNT)

Special Hazards OXACIDALKCOR Oxidizing Material Acid Alkaline or Base Corrosive Unusual reactivity with water Radioactive

What does this NFPA Diamond mean? 3 2 W 4

Labeling and Marking Systems HMIS Labels  You should never have any unattended, unlabeled containers in your workplace!

Labeling and Marking Systems Uniform Laboratory Signage  Located on laboratory and chemical storage area doors  Pictographs depict worst hazards present in lab or area

Lab Safety Symbols Found in your textbook Glassware Glassware Heat Heat Eye and Face Eye and Face Sharps Sharps Electrical Electrical Animal Animal Chemical Chemical Fire Fire

Other Chemical Hazards and Symbols Flammable Flammable Explosive Explosive Toxic/Poison Toxic/Poison Irritant Irritant Corrosive Corrosive Environmental Environmental

Chemical Hazard Symbols and Definitions Flammable – Any substance that will burn if exposed to an open flame. Flammable – Any substance that will burn if exposed to an open flame. Explosive – A substance that may explode if exposed to heat or flame. Explosive – A substance that may explode if exposed to heat or flame.

What’s Wrong With This Picture?

What’s Wrong With These Statements? Hal says that his teacher is solely responsible for preventing laboratory accidents. Keshia started the lab activity before reading it through completely. Ricardo decided to do a lab activity that he read about in a library book before the teacher came into the classroom. Stephanie says that the safety goggles mess up her hair and give her raccoon eyes. She refuses to wear them. Barbie and Ken accidentally break a beaker full of some chemical. Instead of risking getting in trouble they quickly clean up the mess with paper towel and throw it in the garbage.

Compare and Contrast 2 Chemicals Build a table that answers the following things about your assigned chemicals: Build a table that answers the following things about your assigned chemicals: 1. Appearance 1. Appearance 2.First aid measures 2.First aid measures 3. How to dispose it. 3. How to dispose it. 4. Storage 4. Storage 5. Fire Fighting Measures 5. Fire Fighting Measures 6. Spill 6. Spill Below your table, write a paragraph that compares and contrasts your 2 chemicals. Below your table, write a paragraph that compares and contrasts your 2 chemicals. On the back of the paper draw and color a safety diamond for each one of your chemicals On the back of the paper draw and color a safety diamond for each one of your chemicals